Tag: physics

The voice quality changes as per the length of the vocal chords. Men have about 20 mm long vocal chords, whereas women have about 15 mm long vocal chords. Children have very short vocal chords. That attributes to the different voices of men, women and children.

The length of the vocal chords differs in men and women, which is why there is difference in the quality of their voice. The length of the vocal chord in men is approximately 20 mm and in women it is 15 mm.

In humans sound is produced by the voice box or larynx. It is the upper part of the windpipe. Two vocal cords are stretched across the voice box leaving a narrow slit. When the lungs force air through the slit, it vibrates and produces sound.

Humans have larynx which consists of vocal folds which helps in producing sound which we call voice.

Phonation is known as process of converting air pressure from lungs into audible vibrations.

Mass of a particle executing a vibration in a wave is constant. The energy and wavelength in a wave in the same medium remain constant. Amplitude of the wave varies with time although the peak value of  the amplitude is constant.

There are 2 vocal cords, which produce sound in humans. There are, in fact, 2 other cords but they do not contribute in producing voice. Those are silent vocal cords.

Average female speaking voice range is $210Hz$

Average male speaking voice range is $125Hz$

Average child speaking voice range is $ 300Hz$

Human sound is produced by the vocal cords, which are located within the larynx (voice box). While the larynx houses them, the vocal cords themselves are the vibrating structures that generate sound.

Human ear has a hearing range of 20Hz to 20KHz.